Pringle, R. F. (1986). Soil survey of Grays Harbor County Area, Pacific County, and Wahkiakum County, Washington. The Service.
Chicago Style (17th ed.) CitationPringle, Russell F. Soil Survey of Grays Harbor County Area, Pacific County, and Wahkiakum County, Washington. [Washington, D.C.?]: The Service, 1986.
MLA (9th ed.) CitationPringle, Russell F. Soil Survey of Grays Harbor County Area, Pacific County, and Wahkiakum County, Washington. The Service, 1986.
Warning: These citations may not always be 100% accurate.